12164081623 has 2 divisors, whose sum is σ = 12164081624. Its totient is φ = 12164081622.

The previous prime is 12164081543. The next prime is 12164081653. The reversal of 12164081623 is 32618046121.

It is a strong prime.

It is an emirp because it is prime and its reverse (32618046121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12164081623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12164081653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6082040811 + 6082040812.

It is an arithmetic number, because the mean of its divisors is an integer number (6082040812).

Almost surely, 2^12164081623 is an apocalyptic number.

12164081623 is a deficient number, since it is larger than the sum of its proper divisors (1).

12164081623 is an equidigital number, since it uses as much as digits as its factorization.

12164081623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 12164081623 in words is "twelve billion, one hundred sixty-four million, eighty-one thousand, six hundred twenty-three".